Add event handlers for message reactions, business accounts, and chat boosts

[Copilot]

The repository contained type definitions for Bot API 7.x+ features (message reactions, business accounts, chat boosts) but lacked event handling infrastructure. Bots could receive these updates but had no way to process them.

Changes

Event Handlers Added

• onMessageReaction() / onMessageReactionCount() - Track user reactions to messages
• onBusinessConnection() / onBusinessMessage() / onEditedBusinessMessage() / onDeletedBusinessMessages() - Handle Telegram Business account integration
• onChatBoost() / onRemovedChatBoost() - Monitor premium chat boost events

Implementation

• Added listener typedefs and registration methods to EventBroadcaster
• Wired up broadcast calls in EventHandler::handleUpdate()
• Updated README to document supported features

Usage

bot.getEvents().onMessageReaction([](MessageReactionUpdated::Ptr reaction) {
    // Handle reaction on message
});

bot.getEvents().onBusinessMessage([](Message::Ptr msg) {
    // Process message from business account
});

bot.getEvents().onChatBoost([](ChatBoostUpdated::Ptr boost) {
    // Track chat boosts
});

All changes follow existing patterns. No breaking changes to public API.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• api.telegram.org
  • Triggering command: /usr/bin/curl curl -s REDACTED (dns block)
• core.telegram.org
  • Triggering command: /usr/bin/curl curl -s REDACTED (dns block)
  • Triggering command: /usr/bin/wget wget -qO- REDACTED (dns block)
  • Triggering command: `/usr/bin/python3 python3 -c
    import urllib.request
    import re

try:
response = urllib.request.urlopen('REDACTED')
html = response.read().decode('utf-8')
matches = re.findall(r'Bot API (\d+.\d+)', html)
if matches:
print('La` (dns block)

• esm.ubuntu.com
  • Triggering command: /usr/lib/apt/methods/https /usr/lib/apt/methods/https (dns block)
• https://api.github.com/repos/tdlib/telegram-bot-api/releases/latest
  • Triggering command: /usr/bin/curl curl -s REDACTED (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

Update telegram bot api to latest available

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